| 采用电压复位技术的像素级模数转换器 |
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| 引用本文： | 李敏增,李福乐,张春,王志华.采用电压复位技术的像素级模数转换器[J].半导体学报,2014,35(11):115009-5. |
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| 作者姓名： | 李敏增 李福乐 张春 王志华 |
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| 作者单位： | Institute of Microelectronics,Tsinghua University |
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| 基金项目： | project supported by the Major National Science & Technology Program of China |
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| 摘 要： | This paper presents a 50 Hz 15-bit analog-to-digital converter(ADC) for pixel-level implementation in CMOS image sensors.The ADC is based on charge packets counting and adopts a voltage reset technique to inject charge packets.The core circuit for charge/pulse conversion is specially optimized for low power,low noise and small area.An experimental chip with ten pixel-level ADCs has been fabricated and tested for verification.The measurement result shows a standard deviation of 1.8 LSB for full-scale output.The ADC has an area of 4545 m2 and consumes less than 2 W in a standard 1P-6M 0.18 m CMOS process.
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| 关 键 词： | pixel reset converter relaxation analog deviation specially verification overcome shortcomings |
Pixel-level A/D conversion using voltage reset technique |
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| Li Minzeng,Li Fule,Zhang Chun and Wang Zhihua.Pixel-level A/D conversion using voltage reset technique[J].Chinese Journal of Semiconductors,2014,35(11):115009-5. |
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| Authors: | Li Minzeng Li Fule Zhang Chun and Wang Zhihua |
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| Affiliation: | Institute of Microelectronics, Tsinghua University, Beijing 100084, China;Institute of Microelectronics, Tsinghua University, Beijing 100084, China;Institute of Microelectronics, Tsinghua University, Beijing 100084, China;Institute of Microelectronics, Tsinghua University, Beijing 100084, China |
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| Abstract: | |
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| Keywords: | pixel-level analog-to-digital converter (ADC) voltage reset technique low speed and high resolution |
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